* Hang in usb_musb_init() with 2.6.32-rc5?
@ 2009-11-03 22:28 Bill Gatliff
2009-11-03 22:31 ` Felipe Balbi
0 siblings, 1 reply; 2+ messages in thread
From: Bill Gatliff @ 2009-11-03 22:28 UTC (permalink / raw)
To: linux-omap@vger.kernel.org
Guys:
I'm back! :) This time, it's because my Beagleboard-like platform
hangs hard during boot if I call usb_musb_init().
There are more differences between my platform and Beagleboard in this
area, namely that I'm using a different USB transceiver and I'm on hs0.
But why would the platform hang hard during boot?
Here are what I think are the relevant parts of my config:
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_CAIAQ is not set
CONFIG_USB_SUPPORT=y
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1760_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# OMAP 343x high speed USB support
CONFIG_USB_MUSB_HOST=y
# CONFIG_USB_MUSB_PERIPHERAL is not set
# CONFIG_USB_MUSB_OTG is not set
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
CONFIG_USB_INVENTRA_DMA=y
CONFIG_USB_MUSB_DEBUG=y
CONFIG_NOP_USB_XCEIV=y
I also created some new mux entries that I need:
omap_cfg_reg(R21_3430_USB0HS_PHY_CLK);
omap_cfg_reg(R23_3430_USB0HS_PHY_STP);
omap_cfg_reg(P23_3430_USB0HS_PHY_DIR);
omap_cfg_reg(R22_3430_USB0HS_PHY_NXT);
omap_cfg_reg(T24_3430_USB0HS_PHY_D0);
omap_cfg_reg(T23_3430_USB0HS_PHY_D1);
omap_cfg_reg(U24_3430_USB0HS_PHY_D2);
omap_cfg_reg(U23_3430_USB0HS_PHY_D3);
omap_cfg_reg(W24_3430_USB0HS_PHY_D4);
omap_cfg_reg(V23_3430_USB0HS_PHY_D5);
omap_cfg_reg(W23_3430_USB0HS_PHY_D6);
omap_cfg_reg(T22_3430_USB0HS_PHY_D7);
I'm even doing this, which I'm not sure is necessary:
ick = clk_get(NULL, "ick");
if (ick) clk_enable(ick);
...
usb_musb_init();
...
Any ideas? Thanks!!
b.g.
--
Bill Gatliff
bgat@billgatliff.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Hang in usb_musb_init() with 2.6.32-rc5?
2009-11-03 22:28 Hang in usb_musb_init() with 2.6.32-rc5? Bill Gatliff
@ 2009-11-03 22:31 ` Felipe Balbi
0 siblings, 0 replies; 2+ messages in thread
From: Felipe Balbi @ 2009-11-03 22:31 UTC (permalink / raw)
To: ext Bill Gatliff; +Cc: linux-omap@vger.kernel.org
Hi,
On Tue, Nov 03, 2009 at 11:28:04PM +0100, ext Bill Gatliff wrote:
> I'm back! :) This time, it's because my Beagleboard-like platform
> hangs hard during boot if I call usb_musb_init().
>
> There are more differences between my platform and Beagleboard in this
> area, namely that I'm using a different USB transceiver and I'm on hs0.
> But why would the platform hang hard during boot?
>
> Here are what I think are the relevant parts of my config:
>
> CONFIG_SND_USB=y
> # CONFIG_SND_USB_AUDIO is not set
> # CONFIG_SND_USB_CAIAQ is not set
> CONFIG_USB_SUPPORT=y
> CONFIG_USB_ARCH_HAS_HCD=y
> CONFIG_USB_ARCH_HAS_OHCI=y
> CONFIG_USB_ARCH_HAS_EHCI=y
> CONFIG_USB=y
> CONFIG_USB_DEBUG=y
> CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
> CONFIG_USB_EHCI_HCD=y
> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
> # CONFIG_USB_EHCI_TT_NEWSCHED is not set
> # CONFIG_USB_OXU210HP_HCD is not set
> # CONFIG_USB_ISP116X_HCD is not set
> # CONFIG_USB_ISP1760_HCD is not set
> # CONFIG_USB_ISP1362_HCD is not set
> CONFIG_USB_OHCI_HCD=y
> # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
> # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
> CONFIG_USB_OHCI_LITTLE_ENDIAN=y
> CONFIG_USB_MUSB_HDRC=y
> CONFIG_USB_MUSB_SOC=y
> # OMAP 343x high speed USB support
> CONFIG_USB_MUSB_HOST=y
> # CONFIG_USB_MUSB_PERIPHERAL is not set
> # CONFIG_USB_MUSB_OTG is not set
> CONFIG_USB_MUSB_HDRC_HCD=y
> # CONFIG_MUSB_PIO_ONLY is not set
> CONFIG_USB_INVENTRA_DMA=y
> CONFIG_USB_MUSB_DEBUG=y
> CONFIG_NOP_USB_XCEIV=y
>
> I also created some new mux entries that I need:
>
> omap_cfg_reg(R21_3430_USB0HS_PHY_CLK);
> omap_cfg_reg(R23_3430_USB0HS_PHY_STP);
> omap_cfg_reg(P23_3430_USB0HS_PHY_DIR);
> omap_cfg_reg(R22_3430_USB0HS_PHY_NXT);
> omap_cfg_reg(T24_3430_USB0HS_PHY_D0);
> omap_cfg_reg(T23_3430_USB0HS_PHY_D1);
> omap_cfg_reg(U24_3430_USB0HS_PHY_D2);
> omap_cfg_reg(U23_3430_USB0HS_PHY_D3);
> omap_cfg_reg(W24_3430_USB0HS_PHY_D4);
> omap_cfg_reg(V23_3430_USB0HS_PHY_D5);
> omap_cfg_reg(W23_3430_USB0HS_PHY_D6);
> omap_cfg_reg(T22_3430_USB0HS_PHY_D7);
>
> I'm even doing this, which I'm not sure is necessary:
>
> ick = clk_get(NULL, "ick");
> if (ick) clk_enable(ick);
> ...
> usb_musb_init();
> ...
>
>
> Any ideas? Thanks!!
test with omap-debug branch, enable CONFIG_LL_DEBUG and see what's going
on. I'm guessing you didn't enable any transceiver driver and you're
getting an oops.
--
balbi
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-11-03 22:28 Hang in usb_musb_init() with 2.6.32-rc5? Bill Gatliff
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